Important: This helper will do nothing if called directly without any context. It requires some information about the NSPanel Item to work with. If you don't use this helper in any script called by your CallBack (like some Card), you need to set the context yourself.
Just supply the new timeout in seconds. It will get activated immediately trough some indirect call trough your CallBack. Your CallBack has to be configured and working.
Openhab Blockly Nspanel - Library Documentation